I could "release" a story on how I found an iPad on a bus that shows that Donald Trump Jr. has sex with babies and then posts it on a hidden social media network. I could release it (like Guiliani did with the Hunter Biden story) with no verifiable evidence, just an insistence that this is all true.
The story would be false, because I just made that up. I would think it would be pretty remiss of FB or Twitter to allow my invented story to spread given its completely unsubstantiated nature.
Now, if at a later date, it turned out that people were able to verify that DTjr did in fact have sex with babies and shared the videos with a private network, it would also be remiss of FB and Twitter to prevent discussion of it.
We live in an era where people can release stories with generated audio, video and other visual media to make any invented point they want. The idea that these stories should be able to be spread around freely even in the absence of any actually verified facts is fundamentally absurd. If you were to get that wish, I am absolutely certain that you would hate the world it would create even more than you might the current one.